<template>
  <div class="container">
    <div class="left-board">
      <div class="logo-wrapper">
        <div class="logo"><img :src="logo" alt="logo" /> Form Generator</div>
      </div>
      <el-scrollbar class="left-scrollbar">
        <div class="components-list">
          <div class="components-title">
            <svg-icon icon-class="component" />输入型组件
          </div>
          <draggable
            class="components-draggable"
            :list="inputComponents"
            :group="{ name: 'componentsGroup', pull: 'clone', put: false }"
            :clone="cloneComponent"
            draggable=".components-item"
            :sort="false"
            @end="onEnd"
          >
            <div
              v-for="(element, index) in inputComponents"
              :key="index"
              class="components-item"
              @click="addComponent(element)"
            >
              <div class="components-body">
                <svg-icon :icon-class="element.tagIcon" />
                {{ element.label }}
              </div>
            </div>
          </draggable>
          <div class="components-title">
            <svg-icon icon-class="component" />选择型组件
          </div>
          <draggable
            class="components-draggable"
            :list="selectComponents"
            :group="{ name: 'componentsGroup', pull: 'clone', put: false }"
            :clone="cloneComponent"
            draggable=".components-item"
            :sort="false"
            @end="onEnd"
          >
            <div
              v-for="(element, index) in selectComponents"
              :key="index"
              class="components-item"
              @click="addComponent(element)"
            >
              <div class="components-body">
                <svg-icon :icon-class="element.tagIcon" />
                {{ element.label }}
              </div>
            </div>
          </draggable>
          <div class="components-title">
            <svg-icon icon-class="component" /> 布局型组件
          </div>
          <draggable
            class="components-draggable"
            :list="layoutComponents"
            :group="{ name: 'componentsGroup', pull: 'clone', put: false }"
            :clone="cloneComponent"
            draggable=".components-item"
            :sort="false"
            @end="onEnd"
          >
            <div
              v-for="(element, index) in layoutComponents"
              :key="index"
              class="components-item"
              @click="addComponent(element)"
            >
              <div class="components-body">
                <svg-icon :icon-class="element.tagIcon" />
                {{ element.label }}
              </div>
            </div>
          </draggable>
        </div>
      </el-scrollbar>
    </div>

    <div class="center-board">
      <div class="action-bar">
        <el-button
          v-show="pageDataId == undefined"
          class="copy-btn-main"
          icon="el-icon-document-copy"
          type="text"
          @click="add"
        >
          新增
        </el-button>
        <el-button
          v-show="pageDataId != undefined"
          class="copy-btn-main"
          icon="el-icon-document-copy"
          type="text"
          @click="Revise"
        >
          修改
        </el-button>
        <el-button
          class="delete-btn"
          icon="el-icon-delete"
          type="text"
          @click="empty"
        >
          清空
        </el-button>
      </div>
      <el-scrollbar class="center-scrollbar">
        <el-row class="center-board-row" :gutter="formConf.gutter" v-loading="rowShow">
          <el-form
            :size="formConf.size"
            :label-position="formConf.labelPosition"
            :disabled="formConf.disabled"
            :label-width="formConf.labelWidth + 'px'"
          >
            <draggable
              class="drawing-board"
              :list="drawingList"
              :animation="340"
              group="componentsGroup"
            >
              <draggable-item
                v-for="(element, index) in drawingList"
                :key="element.renderKey"
                :drawing-list="drawingList"
                :element="element"
                :index="index"
                :active-id="activeId"
                :form-conf="formConf"
                @activeItem="activeFormItem"
                @copyItem="drawingItemCopy"
                @deleteItem="drawingItemDelete"
              />
            </draggable>
            <div v-show="!drawingList.length" class="empty-info">
              从左侧拖入或点选组件进行表单设计
            </div>
          </el-form>
        </el-row>
      </el-scrollbar>
    </div>

    <right-panel
      :active-data="activeData"
      :form-conf="formConf"
      :show-field="!!drawingList.length"
      @tag-change="tagChange"
    />
    <input id="copyNode" type="hidden" />
  </div>
</template>

<script>
import draggable from "vuedraggable";
import { saveAs } from "file-saver";
import beautifier from "js-beautify";
import ClipboardJS from "clipboard";
import render from "@/utils/generator/render";
import RightPanel from "./RightPanel";
import {
  inputComponents,
  selectComponents,
  layoutComponents,
  formConf,
} from "@/utils/generator/config";
import {
  exportDefault,
  beautifierConf,
  isNumberStr,
  titleCase,
} from "@/utils/index";
import {
  makeUpHtml,
  vueTemplate,
  vueScript,
  cssStyle,
} from "@/utils/generator/htmlNotVue";
import { makeUpJs } from "@/utils/generator/js";
import { makeUpCss } from "@/utils/generator/css";
import drawingDefalut from "@/utils/generator/drawingDefalut";
import logo from "@/assets/logo/logo.png";
import CodeTypeDialog from "./CodeTypeDialog";
import DraggableItem from "./DraggableItem";

import { addPage,getPage,reviseFrom } from "@/views/UDform/js/page";

const emptyActiveData = { style: {}, autosize: {} };
let oldActiveId;
let tempActiveData;

export default {
  name: "LayoutFunction",
  components: {
    draggable,
    render,
    RightPanel,
    CodeTypeDialog,
    DraggableItem,
  },
  data() {
    return {
      id:"",
      pageDataId:"",
      rowShow:false,
      logo,
      idGlobal: 100,
      formConf,
      buttonText:"添加",
      inputComponents,
      selectComponents,
      layoutComponents,
      labelWidth: 100,
      drawingList: drawingDefalut,
      drawingData: {},
      activeId: drawingDefalut[0].formId,
      drawerVisible: false,
      formData: {},
      dialogVisible: false,
      generateConf: null,
      showFileName: false,
      activeData: drawingDefalut[0],
      applicationId: "",
      pageCode: [],
      pageData: [],
    };
  },
  created() {
    this.drawingList = drawingDefalut;
    let rouData = this.$route.query;
    this.applicationId = rouData.applicationId;
    this.pageDataId = rouData.pageDataId;
    let formName = rouData.name
    if (this.pageDataId != undefined) {
      this.formConf.formRef = formName
      this.getPageData(this.pageDataId);
    }
    // 防止 firefox 下 拖拽 会新打卡一个选项卡
    document.body.ondrop = (event) => {
      event.preventDefault();
      event.stopPropagation();
    };
  },
  // 路由进入时事件
  activated() {
    this.drawingList = drawingDefalut;
    let rouData = this.$route.query;
    this.applicationId = rouData.applicationId;
    this.id = rouData.id;
    this.pageDataId = rouData.pageDataId;
    if (this.pageDataId != undefined) {
      this.getPageData(this.pageDataId);
    }
  },
  // 路由离开时事件
  deactivated(){
    this.drawingList = drawingDefalut
  },
  watch: {
    // eslint-disable-next-line func-names
    "activeData.label": function (val, oldVal) {
      if (
        this.activeData.placeholder === undefined ||
        !this.activeData.tag ||
        oldActiveId !== this.activeId
      ) {
        return;
      }
      this.activeData.placeholder =
        this.activeData.placeholder.replace(oldVal, "") + val;
    },
    activeId: {
      handler(val) {
        oldActiveId = val;
      },
      immediate: true,
    },
  },
  mounted() {
    const clipboard = new ClipboardJS("#copyNode", {
      text: (trigger) => {
        const codeStr = this.generateCode();
        this.$notify({
          title: "成功",
          message: "成功。",
          type: "success",
        });
        return codeStr;
      },
    });
    clipboard.on("error", (e) => {
      this.$message.error("失败");
    });
  },
  methods: {
    getPageData(id){
      this.rowShow = true
      getPage(id).then(response => {
        this.form = response.data;
        let webData = this.form.webPageCode
        if (webData != undefined) {
          this.webData = JSON.parse("[" + webData + "]");
          this.drawingList = this.webData;
        }
        this.rowShow = false;
      })
    },
    activeFormItem(element) {
      this.activeData = element;
      this.activeId = element.formId;
    },
    onEnd(obj, a) {
      if (obj.from !== obj.to) {
        this.activeData = tempActiveData;
        this.activeId = this.idGlobal;
      }
    },
    addComponent(item) {
      const clone = this.cloneComponent(item);
      this.drawingList.push(clone);
      this.activeFormItem(clone);
    },
    cloneComponent(origin) {
      const clone = JSON.parse(JSON.stringify(origin));
      clone.formId = ++this.idGlobal;
      clone.span = formConf.span;
      clone.renderKey = +new Date(); // 改变renderKey后可以实现强制更新组件
      if (!clone.layout) clone.layout = "colFormItem";
      if (clone.layout === "colFormItem") {
        clone.vModel = `field${this.idGlobal}`;
        clone.placeholder !== undefined && (clone.placeholder += clone.label);
        tempActiveData = clone;
      } else if (clone.layout === "rowFormItem") {
        delete clone.label;
        clone.componentName = `row${this.idGlobal}`;
        clone.gutter = this.formConf.gutter;
        tempActiveData = clone;
      }
      return tempActiveData;
    },
    AssembleFormData() {
      this.formData = {
        fields: JSON.parse(JSON.stringify(this.drawingList)),
        ...this.formConf,
      };
      // 将数据保存为String类型
      for (let i = 0; i < this.drawingList.length; i++) {
        let a = JSON.stringify(this.drawingList[i]);
        this.pageCode.push(a);
      }
    },
    generate(data) {
      const func = this[`exec${titleCase(this.operationType)}`];
      this.generateConf = data;
      func && func(data);
    },
    execRun(data) {
      this.AssembleFormData();
      this.drawerVisible = true;
    },
    execDownload(data) {
      const codeStr = this.generateCode();
      const blob = new Blob([codeStr], { type: "text/plain;charset=utf-8" });
      saveAs(blob, data.fileName);
    },
    execCopy(data) {
      document.getElementById("copyNode").click();
    },
    empty() {
      this.$confirm("确定要清空所有组件吗？", "提示", { type: "warning" }).then(
        () => {
          this.drawingList = [];
        }
      );
    },
    drawingItemCopy(item, parent) {
      let clone = JSON.parse(JSON.stringify(item));
      clone = this.createIdAndKey(clone);
      parent.push(clone);
      this.activeFormItem(clone);
    },
    createIdAndKey(item) {
      item.formId = ++this.idGlobal;
      item.renderKey = +new Date();
      if (item.layout === "colFormItem") {
        item.vModel = `field${this.idGlobal}`;
      } else if (item.layout === "rowFormItem") {
        item.componentName = `row${this.idGlobal}`;
      }
      if (Array.isArray(item.children)) {
        item.children = item.children.map((childItem) =>
          this.createIdAndKey(childItem)
        );
      }
      return item;
    },
    drawingItemDelete(index, parent) {
      parent.splice(index, 1);
      this.$nextTick(() => {
        const len = this.drawingList.length;
        if (len) {
          this.activeFormItem(this.drawingList[len - 1]);
        }
      });
    },
    generateCode() {
      this.pageCode = [];
      this.AssembleFormData();
      const script = vueScript(makeUpJs(this.formData));
      const html = vueTemplate(makeUpHtml(this.formData));
      const css = cssStyle(makeUpCss(this.formData));
      const pageData = html;
      const form = {};
      form.webPageCode = this.pageCode.toString();
      // const field = {
      //   name: null,
      //   code: null,
      //   fieldType: null,
      //   promptContent: null, //备注
      //   isShow: null, //是否列表展示0否1是
      //   isQuery: null, //是否查询条件0否1是
      // };
      console.log(this.formData);;
      var fieldList = [];
      for (var i = 0; i < this.formData.fields.length; i++) {
        const field = {};
        field.orderNum = i;
        field.name = this.formData.fields[i].label;
        field.code = this.formData.fields[i].vModel;
        field.dict = this.formData.fields[i].dict;
        field.promptContent = this.formData.fields[i].placeholder;
        if (this.formData.fields[i].listExhibit) {
          field.isShow = 1;
        } else {
          field.isShow = 0;
        }
        if (this.formData.fields[i].queryConditions) {
          field.isQuery = 1;
        } else {
          field.isQuery = 0;
        }
        if (this.formData.fields[i].isModify) {
          field.isModify = 1;
        } else {
          field.isModify = 0;
        }
        fieldList.push(field);
      }
      form.fieldList = fieldList;
      form.name = this.formData.formRef;
      form.applicationId = this.applicationId;
      if (this.pageDataId == undefined) {
        addPage(form).then((res) => {
          if (res.code == 200) {
            this.msgSuccess("新增成功");
          }
        });
      } else{
        form.id=this.pageDataId;
        reviseFrom(form).then((res)=>{
          if (res.code == 200) {
            this.msgSuccess("修改成功");
          }
        })
      }
      return beautifier.html(html + script + css, beautifierConf.html);
    },
    run() {
      this.dialogVisible = true;
      this.showFileName = false;
      this.operationType = "run";
    },
    // 新增按钮
    add() {
      this.generateCode()
    },
    // 修改按钮
    Revise(){
      this.generateCode();
    },
    tagChange(newTag) {
      newTag = this.cloneComponent(newTag);
      newTag.vModel = this.activeData.vModel;
      newTag.formId = this.activeId;
      newTag.span = this.activeData.span;
      delete this.activeData.tag;
      delete this.activeData.tagIcon;
      delete this.activeData.document;
      Object.keys(newTag).forEach((key) => {
        if (
          this.activeData[key] !== undefined &&
          typeof this.activeData[key] === typeof newTag[key]
        ) {
          newTag[key] = this.activeData[key];
        }
      });
      this.activeData = newTag;
      this.updateDrawingList(newTag, this.drawingList);
    },
    updateDrawingList(newTag, list) {
      const index = list.findIndex((item) => item.formId === this.activeId);
      if (index > -1) {
        list.splice(index, 1, newTag);
      } else {
        list.forEach((item) => {
          if (Array.isArray(item.children))
            this.updateDrawingList(newTag, item.children);
        });
      }
    },
  },
};
</script>

<style lang='scss'>
body,
html {
  margin: 0;
  padding: 0;
  background: #fff;
  -moz-osx-font-smoothing: grayscale;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial,
    sans-serif, Apple Color Emoji, Segoe UI Emoji;
}

input,
textarea {
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Helvetica, Arial,
    sans-serif, Apple Color Emoji, Segoe UI Emoji;
}

.editor-tabs {
  background: #121315;
  .el-tabs__header {
    margin: 0;
    border-bottom-color: #121315;
    .el-tabs__nav {
      border-color: #121315;
    }
  }
  .el-tabs__item {
    height: 32px;
    line-height: 32px;
    color: #888a8e;
    border-left: 1px solid #121315 !important;
    background: #363636;
    margin-right: 5px;
    user-select: none;
  }
  .el-tabs__item.is-active {
    background: #1e1e1e;
    border-bottom-color: #1e1e1e !important;
    color: #fff;
  }
  .el-icon-edit {
    color: #f1fa8c;
  }
  .el-icon-document {
    color: #a95812;
  }
}

// home
.right-scrollbar {
  .el-scrollbar__view {
    padding: 12px 18px 15px 15px;
  }
}
.left-scrollbar .el-scrollbar__wrap {
  box-sizing: border-box;
  overflow-x: hidden !important;
  margin-bottom: 0 !important;
}
.center-tabs {
  .el-tabs__header {
    margin-bottom: 0 !important;
  }
  .el-tabs__item {
    width: 50%;
    text-align: center;
  }
  .el-tabs__nav {
    width: 100%;
  }
}
.reg-item {
  padding: 12px 6px;
  background: #f8f8f8;
  position: relative;
  border-radius: 4px;
  .close-btn {
    position: absolute;
    right: -6px;
    top: -6px;
    display: block;
    width: 16px;
    height: 16px;
    line-height: 16px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 50%;
    color: #fff;
    text-align: center;
    z-index: 1;
    cursor: pointer;
    font-size: 12px;
    &:hover {
      background: rgba(210, 23, 23, 0.5);
    }
  }
  & + .reg-item {
    margin-top: 18px;
  }
}
.action-bar {
  & .el-button + .el-button {
    margin-left: 15px;
  }
  & i {
    font-size: 20px;
    vertical-align: middle;
    position: relative;
    top: -1px;
  }
}

.custom-tree-node {
  width: 100%;
  font-size: 14px;
  .node-operation {
    float: right;
  }
  i[class*="el-icon"] + i[class*="el-icon"] {
    margin-left: 6px;
  }
  .el-icon-plus {
    color: #409eff;
  }
  .el-icon-delete {
    color: #157a0c;
  }
}

.left-scrollbar .el-scrollbar__view {
  overflow-x: hidden;
}

.el-rate {
  display: inline-block;
  vertical-align: text-top;
}
.el-upload__tip {
  line-height: 1.2;
}

$selectedColor: #f6f7ff;
$lighterBlue: #409eff;

.container {
  position: relative;
  width: 100%;
  height: 100%;
}

.components-list {
  padding: 8px;
  box-sizing: border-box;
  height: 100%;
  .components-item {
    display: inline-block;
    width: 48%;
    margin: 1%;
    transition: transform 0ms !important;
  }
}
.components-draggable {
  padding-bottom: 20px;
}
.components-title {
  font-size: 14px;
  color: #222;
  margin: 6px 2px;
  .svg-icon {
    color: #666;
    font-size: 18px;
  }
}

.components-body {
  padding: 8px 10px;
  background: $selectedColor;
  font-size: 12px;
  cursor: move;
  border: 1px dashed $selectedColor;
  border-radius: 3px;
  .svg-icon {
    color: #777;
    font-size: 15px;
  }
  &:hover {
    border: 1px dashed #787be8;
    color: #787be8;
    .svg-icon {
      color: #787be8;
    }
  }
}

.left-board {
  width: 260px;
  position: absolute;
  left: 0;
  top: 0;
  height: 100vh;
}
.left-scrollbar {
  height: calc(100vh - 42px);
  overflow: hidden;
}
.center-scrollbar {
  height: calc(100vh - 42px);
  overflow: hidden;
  border-left: 1px solid #f1e8e8;
  border-right: 1px solid #f1e8e8;
  box-sizing: border-box;
}
.center-board {
  height: 100vh;
  width: auto;
  margin: 0 350px 0 260px;
  box-sizing: border-box;
}
.empty-info {
  position: absolute;
  top: 46%;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 18px;
  color: #ccb1ea;
  letter-spacing: 4px;
}
.action-bar {
  position: relative;
  height: 42px;
  text-align: right;
  padding: 0 15px;
  box-sizing: border-box;
  border: 1px solid #f1e8e8;
  border-top: none;
  border-left: none;
  .delete-btn {
    color: #f56c6c;
  }
}
.logo-wrapper {
  position: relative;
  height: 42px;
  background: #fff;
  border-bottom: 1px solid #f1e8e8;
  box-sizing: border-box;
}
.logo {
  position: absolute;
  left: 12px;
  top: 6px;
  line-height: 30px;
  color: #00afff;
  font-weight: 600;
  font-size: 17px;
  white-space: nowrap;
  > img {
    width: 30px;
    height: 30px;
    vertical-align: top;
  }
  .github {
    display: inline-block;
    vertical-align: sub;
    margin-left: 15px;
    > img {
      height: 22px;
    }
  }
}

.center-board-row {
  padding: 12px 12px 15px 12px;
  box-sizing: border-box;
  & > .el-form {
    // 69 = 12+15+42
    height: calc(100vh - 69px);
  }
}
.drawing-board {
  height: 100%;
  position: relative;
  .components-body {
    padding: 0;
    margin: 0;
    font-size: 0;
  }
  .sortable-ghost {
    position: relative;
    display: block;
    overflow: hidden;
    &::before {
      content: " ";
      position: absolute;
      left: 0;
      right: 0;
      top: 0;
      height: 3px;
      background: rgb(89, 89, 223);
      z-index: 2;
    }
  }
  .components-item.sortable-ghost {
    width: 100%;
    height: 60px;
    background-color: $selectedColor;
  }
  .active-from-item {
    & > .el-form-item {
      background: $selectedColor;
      border-radius: 6px;
    }
    & > .drawing-item-copy,
    & > .drawing-item-delete {
      display: initial;
    }
    & > .component-name {
      color: $lighterBlue;
    }
  }
  .el-form-item {
    margin-bottom: 15px;
  }
}
.drawing-item {
  position: relative;
  cursor: move;
  &.unfocus-bordered:not(.activeFromItem) > div:first-child {
    border: 1px dashed #ccc;
  }
  .el-form-item {
    padding: 12px 10px;
  }
}
.drawing-row-item {
  position: relative;
  cursor: move;
  box-sizing: border-box;
  border: 1px dashed #ccc;
  border-radius: 3px;
  padding: 0 2px;
  margin-bottom: 15px;
  .drawing-row-item {
    margin-bottom: 2px;
  }
  .el-col {
    margin-top: 22px;
  }
  .el-form-item {
    margin-bottom: 0;
  }
  .drag-wrapper {
    min-height: 80px;
  }
  &.active-from-item {
    border: 1px dashed $lighterBlue;
  }
  .component-name {
    position: absolute;
    top: 0;
    left: 0;
    font-size: 12px;
    color: #bbb;
    display: inline-block;
    padding: 0 6px;
  }
}
.drawing-item,
.drawing-row-item {
  &:hover {
    & > .el-form-item {
      background: $selectedColor;
      border-radius: 6px;
    }
    & > .drawing-item-copy,
    & > .drawing-item-delete {
      display: initial;
    }
  }
  & > .drawing-item-copy,
  & > .drawing-item-delete {
    display: none;
    position: absolute;
    top: -10px;
    width: 22px;
    height: 22px;
    line-height: 22px;
    text-align: center;
    border-radius: 50%;
    font-size: 12px;
    border: 1px solid;
    cursor: pointer;
    z-index: 1;
  }
  & > .drawing-item-copy {
    right: 56px;
    border-color: $lighterBlue;
    color: $lighterBlue;
    background: #fff;
    &:hover {
      background: $lighterBlue;
      color: #fff;
    }
  }
  & > .drawing-item-delete {
    right: 24px;
    border-color: #f56c6c;
    color: #f56c6c;
    background: #fff;
    &:hover {
      background: #f56c6c;
      color: #fff;
    }
  }
}
</style>
